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1   /**
2    * This file Copyright (c) 2011 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.jcr.wrapper;
35  
36  import info.magnolia.jcr.iterator.FilteringPropertyIterator;
37  import info.magnolia.jcr.predicate.AbstractPredicate;
38  
39  import javax.jcr.Node;
40  import javax.jcr.PathNotFoundException;
41  import javax.jcr.Property;
42  import javax.jcr.PropertyIterator;
43  import javax.jcr.RepositoryException;
44  
45  /**
46   * Node wrapper that filters out properties based on a predicate, child nodes acquired via this wrapper are also
47   * wrapped in order to filter properties on them as well.
48   *
49   * @version $Id$
50   */
51  public class PropertyFilteringNodeWrapper extends ChildWrappingNodeWrapper {
52  
53      private final AbstractPredicate<Property> predicate;
54  
55      public PropertyFilteringNodeWrapper(Node wrapped, AbstractPredicate<Property> predicate) {
56          super(wrapped);
57          this.predicate = predicate;
58      }
59  
60      @Override
61      public PropertyIterator getProperties() throws RepositoryException {
62          return new FilteringPropertyIterator(super.getProperties(), predicate);
63      }
64  
65      @Override
66      public PropertyIterator getProperties(String namePattern) throws RepositoryException {
67          return new FilteringPropertyIterator(super.getProperties(namePattern), predicate);
68      }
69  
70      @Override
71      public PropertyIterator getProperties(String[] nameGlobs) throws RepositoryException {
72          return new FilteringPropertyIterator(super.getProperties(nameGlobs), predicate);
73      }
74  
75      @Override
76      public Property getProperty(String relPath) throws PathNotFoundException, RepositoryException {
77          Property property = super.getProperty(relPath);
78          if (!predicate.evaluate(property)) {
79              throw new PathNotFoundException("Property " + relPath + " is not accessible via this wrapper.");
80          }
81          return property;
82      }
83  }